import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/User/Users.vue'
import Rights from '../components/Power/rights.vue'
import Roles from '../components/Power/Roles.vue'
import Cate from '../components/Goods/Cate.vue'
import Params from '../components/Goods/Params.vue'
import List from '../components/Goods/List.vue'
import Add from '../components/Goods/Add.vue'
import Report from '../components/Report/Report.vue'
Vue.use(VueRouter)

const routes = [
  { path: '/login', component: Login },
  { path: '/', redirect: '/login' },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      {
        path: '/welcome',
        component: Welcome
      },
      {
        path: '/users',
        component: Users
      },
      {
        path: '/rights',
        component: Rights
      },
      {
        path: '/roles',
        component: Roles
      },
      {
        path: '/categories',
        component: Cate
      },
      {
        path: '/params',
        component: Params
      },
      {
        path: '/goods',
        component: List
      },
      {
        path: '/goods/add',
        component: Add
      },
      {
        path: '/reports',
        component: Report
      }
    ]
  }
]

const router = new VueRouter({
  routes
})

// 挂载路由导航守卫

router.beforeEach((to, from, next) => {
  // to 要饭问的路径
  // from 代表从哪个路径来的
  // next是一个函数表示放行
  if (to.path === '/login') return next()
  const tokenStr = sessionStorage.getItem('token')
  if (!tokenStr) {
    next('/login')
  } else next()
})

export default router
